Philips PM 6650 Operating Manual page 32

Counter/timer 512 mhz/1ns
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36
2.9. Single time interval measurement
11
8.
9.
10.
11.
. Set FUNCTION switch to T.|. A to B.
. Set DISPLAY TIME to mid-position.
. Set TIME BASE switch to desired resolution.
. Depress MEMORY
switch.
Select desired COUPLing and SLOPE
of channel
Select desired COUPLing and SLOPE of channel A.
. Select desired
COUPLing
and
SLOPE
of chan-
nel A.
. Select desired
COUPLing
and SLOPE
of chan-
nel B.
. Select suitable input impedance.
a. Start/stop signals from common source:
Depress COM
switch and connect signal to in-
put A.
b. Start/stop signals from separate sources:
Depress SEP switch and connect start signal to
input A and stop signal to input B.
Set ATTenuation A switch and LEVEL A control to
desired
start level. Monitor
set level on oscillo-
scope connected to rear output LEVEL OUT A.
Set ATTenuation B switch and LEVEL B control to
desired stop level.
Monitor
set level on
oscilloscope
connected
to
rear output LEVEL OUT B.
Adjust DISPLAY TIME to desired position.
NOTE 1: Delay from STOP to the next START pulse
must be at least 50 ns.
NOTE 2: Front panel miniature jacks LEVEL OUT can
also be used to monitor
set start or stop
level.

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